Answer:
See explanation below
Explanation:
The malonic ester synthesis is a commonly used reaction to form several products. In this case when we have an excess of base, in presence of an alkyl halide of 4 carbons, this will promoves the formation of a ring.
This synthesis has 4 steps:
1) Enolate formation. In this step the strong base (Such as methoxyde) will substracts the more acidic atom of hydrogen in the molecule. In the malonic ester, it would be the hydrogens from carbon 2.
2) Enolate alkylation. Once the enolate has been formed in the previous step, it will become a nucleophyle, and will attack the alkyl halide to form an enolate alkyl. Then, as we have excess of base, we are going back to step 1 to substract the remaining hydrogen, and then, step 2 again so the remaining bromine leaves the molecule. In this part, it will form the ring.
3) Ester hydrolisis. When the ring is formed, it's time to do an hydrolisis of the ester, so we can convert the ester into carboxilic acids. As we have two ester,we will have two carboxilic acids.
4) Decarboxilation. Finally, a decarboxilation occurs in presence of heat to have the final product with a ring and CO2 there as final products.
See picture attached for products thislllll
Multiply avagadro’s number to the mole
(6.022x10^22) x (0.026)=1.565 x 10^22
A liquid takes 10.14 x 10^6 J of energy to boil 28.47 kg at 298 K. Using the Latent heats of vaporization of some of the substances:
Acetone: 538,900 
Ammonia: 1,371,000 
Propane: 356,000 
Methane: 480,600 
Ethanol: 841,000 
Calculating the latent heat of vaporization of the given substance:
Heat required = 
Mass of the substance boiled = 28.47 kg
Latent heat of vaporization =
So the substance boiled is propane.